50NL, turned set, river completes FD

[kokiri]

On second laptop so no PT stats, and no real reads, but the table has been a little passive.

I think the flop call is ok, but I'm lost on the river. Bet? Check/Call, Check/Fold?

Party Poker No-Limit Hold'em, $0.50 BB (6 handed) Hand History converter Courtesy of PokerZion.com

CO ($27.11)
<font color="#C00000">Button ($55.39)</font>
SB ($55.81)
BB ($79.25)
<font color="#C00000">Hero ($63.84)</font>
<font color="#C00000">MP ($73.69)</font>

Preflop: Hero is UTG with 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Hero raises to $2</font>, MP calls $2, <font color="#666666">1 fold</font>, Button calls $2, <font color="#666666">2 folds</font>.

Flop: ($6.75) 6[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, MP checks, <font color="#CC3333">Button bets $2</font>, Hero calls $2, MP calls $2.

Turn: ($12.75) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $8</font>, MP calls $8, Button calls $8.

River: ($36.75) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero...